Cleaning up references to mDragView after reordering Workspaces

Change-Id: I480142b4714034c5579232a6a0d30f3aecb687ac
Fix NPE if a moved cell does not have a parent

This NPE should actually never happen. It did however and crashed
Trebuchet.
Symptom that will lead to this NPE: Drag Shortcut from homescreen
to somewhere else. Old icon will not get removed while dragging.
This should also be fixed!

Change-Id: I5b5070c93077e69f0f63a26d337fb9aee83ec6d2
Folders: Merge Folders

This allows a folder A's contents to be merged into folder B
when folder A is drag/dropped onto folder B.

Change-Id: I41d62d04b6b4f0932cc68fb6d2a3be111b063d53
Trebuchet : Only reset overscrolled child

Change-Id: Ief240c7fbbe296673ff4124cd4d463c9ba65f764
Automatic translation import

Change-Id: I7826b798d4ba852af567e895bd4850a7eea599d9
Fix name of default

Change-Id: I562dc2572f1d8fdb69f615d1a7f0f425cc27d698